// ==UserScript==
// @name         extremely free speech for gartic.io
// @namespace    http://tampermonkey.net/
// @version      2026-03-31
// @description  lorem ipsum dolor sit amet
// @author       dowrim
// @match        *://gartic.io/*
// @icon         data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
// @grant        none
// @license      GPL3
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';

    const homoglyphs = {
        'a': 'а',
        'c': 'с',
        'e': 'е',
        'o': 'о',
        'p': 'р',
        'x': 'х',
        'y': 'у',
        's': 'ѕ',
        'i': 'і',
        'j': 'ј',
    };

    document.addEventListener('keydown', (event) => {
        const inputField = document.querySelector('input[type="text"][name="chat"]');
        if (inputField && document.activeElement === inputField && event.key.length === 1) {
            const char = event.key;
            const lowerChar = char.toLowerCase();

            if (homoglyphs[lowerChar]) {

                const kirilChar = (char === char.toUpperCase())
                    ? homoglyphs[lowerChar].toUpperCase()
                    : homoglyphs[lowerChar];

                const start = inputField.selectionStart;
                const end = inputField.selectionEnd;
                const text = inputField.value;
                inputField.value = text.slice(0, start) + kirilChar + text.slice(end);
                inputField.selectionStart = inputField.selectionEnd = start + 1;
                inputField.dispatchEvent(new Event('input', { bubbles: true }));
            }
        }
    });
})();